ICD-10 Diagnosis Code E03.4

Atrophy of thyroid (acquired)

Diagnosis Code E03.4

ICD-10: E03.4
Short Description: Atrophy of thyroid (acquired)
Long Description: Atrophy of thyroid (acquired)
This is the 2017 version of the ICD-10-CM diagnosis code E03.4

Code Classification
  • Endocrine, nutritional and metabolic diseases
    • Disorders of thyroid gland (E00-E07)
      • Other hypothyroidism (E03)

Information for Patients


Your thyroid is a butterfly-shaped gland in your neck, just above your collarbone. It is one of your endocrine glands, which make hormones. Thyroid hormones control the rate of many activities in your body. These include how fast you burn calories and how fast your heart beats. All of these activities are your body's metabolism. If your thyroid gland is not active enough, it does not make enough thyroid hormone to meet your body's needs. This condition is hypothyroidism.

Hypothyroidism is more common in women, people with other thyroid problems, and those over 60 years old. Hashimoto's disease, an autoimmune disorder, is the most common cause. Other causes include thyroid nodules, thyroiditis, congenital hypothyroidism, surgical removal of part or all of the thyroid, radiation treatment of the thyroid, and some medicines.

The symptoms can vary from person to person. They may include

  • Fatigue
  • Weight gain
  • A puffy face
  • Cold intolerance
  • Joint and muscle pain
  • Constipation
  • Dry skin
  • Dry, thinning hair
  • Decreased sweating
  • Heavy or irregular menstrual periods and fertility problems
  • Depression
  • Slowed heart rate

To diagnose hypothyroidism, your doctor will do a physical exam, look at your symptoms, and do thyroid tests. Treatment is with synthetic thyroid hormone, taken every day.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Chronic thyroiditis (Hashimoto disease)
  • Factitious hyperthyroidism
  • Hashimoto's Disease - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • Hypothyroidism
  • Neonatal hypothyroidism
  • Silent thyroiditis
  • Subacute thyroiditis
  • T4 test
  • Thyroid Tests - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • TSH test

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